Annals of Forest Science / Institut national de la recherche agronomique (1946 - 2019) . vol 71 n° 3Paru le : 01/05/2014 |
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Ajouter le résultat dans votre panierA comprehensive framework of forest stand property-density relationships: perspectives for plant population ecology and forest management / James N. Long in Annals of Forest Science, vol 71 n° 3 (April - May 2014)
[article]
Titre : A comprehensive framework of forest stand property-density relationships: perspectives for plant population ecology and forest management Type de document : Article/Communication Auteurs : James N. Long, Auteur ; Giorgio Vacchiano, Auteur Année de publication : 2014 Article en page(s) : pp 325 - 335 Note générale : Bibliographie Langues : Anglais (eng) Descripteur : [Vedettes matières IGN] Végétation
[Termes IGN] densité de la végétation
[Termes IGN] écologie
[Termes IGN] gestion des ressources
[Termes IGN] propriété foncière
[Termes IGN] rendement
[Termes IGN] station forestière
[Termes IGN] sylvicultureRésumé : (Auteur) - Context There are many stand property-density relationships in ecology which represent emergent properties of plant populations. Examples include self-thinning, competition-density effect, constant final yield, and age-related decline in stand growth. We suggest that these relationships are different aspects of a general framework of stand property-density relationships. $- Aims We aim to illustrate the generalities and ecological implications of stand property-density relationships, and organize them in a comprehensive framework. $- Methods We illustrate relationships between stand property and density (1) at one point in time, (2) over time, and (3) independent of time. We review the consequences of considering different variables to characterize stand property (mean tree size, mean tree growth, stand growth, stand yield, stand leaf area). $- Results We provide a framework that integrates the broad categories of stand property-density relationships and individual expressions of these relationships. For example, we conclude that constant final yield is a special case of the growth-growing stock relationship for life forms were yield is a reasonable approximation of growth (non-woody plants). $- Conclusion There is support in the literature for leaf area being broadly integrative with respect to various expressions of stand property-density relationships. We show how this is and suggest implications for plant population ecology and forest management. Numéro de notice : A2014-231 Affiliation des auteurs : non IGN Thématique : FORET Nature : Article DOI : 10.1007/s13595-013-0351-3 Date de publication en ligne : 01/05/2014 En ligne : https://doi.org/10.1007/s13595-013-0351-3 Format de la ressource électronique : URL article Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=33134
in Annals of Forest Science > vol 71 n° 3 (April - May 2014) . - pp 325 - 335[article]Réservation
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Code-barres Cote Support Localisation Section Disponibilité 016-2014031 SL Revue Centre de documentation Revues en salle Disponible Cause-effect relationship among morphological adaptations, growth, and gas exchange response of pedunculate oak seedling to waterlogging / Fabienne Tatin-Froux in Annals of Forest Science, vol 71 n° 3 (April - May 2014)
[article]
Titre : Cause-effect relationship among morphological adaptations, growth, and gas exchange response of pedunculate oak seedling to waterlogging Type de document : Article/Communication Auteurs : Fabienne Tatin-Froux, Auteur ; Nicolas Capelli, Auteur ; Julien Parelle, Auteur Année de publication : 2014 Article en page(s) : pp 363 - 369 Note générale : Bibliographie Langues : Anglais (eng) Descripteur : [Vedettes matières IGN] Végétation
[Termes IGN] croissance des arbres
[Termes IGN] dioxyde de carbone
[Termes IGN] Quercus pedunculata
[Termes IGN] ressources en eau
[Termes IGN] système radiculaireMots-clés libres : sol saturé en eau Résumé : (Auteur) - Context In response to waterlogging, pedunculate oak is known to develop adventitious roots and hypertrophied lenticels. However, to date, a link between these adaptations and the ability to maintain net CO2 assimilation rates and growth has not been demonstrated.
- Aims The aim of this study was to explore the cause-effect relationship between the ability to form morphological adaptations (hypertrophied lenticels and adventitious roots) and the capacity to maintain high assimilation rate and growth.
- Methods The occurrence of morphological adaptations and the parameters of photosynthesis were monitored over 20 days of waterlogging in 5-week-old pedunculate oak seedlings presenting similar morphological development.
- Results Based on the development or not of morphological adaptations, the following three categories of responses were identified: development of hypertrophied lenticels and adventitious roots, development of hypertrophied lenticels alone, and the lack of development of adaptive structures. These categories, ranked in the order given, corresponded to decreasing levels of initial net CO2 assimilation rate growth and photosynthesis parameters observed during waterlogging.
- Conclusion We observed a two-way cause-effect relationship between the capacity to form adaptive structures and the assimilation rate. Indeed, the initial assimilation rate determined the occurrence of hypertrophied lenticels and growth during stress, and then the development of morphological adaptations enhanced the ability to maintain assimilation levels during the stress.Numéro de notice : A2014-232 Affiliation des auteurs : non IGN Thématique : FORET Nature : Article DOI : 10.1007/s13595-013-0340-6 Date de publication en ligne : 01/05/2014 En ligne : https://doi.org/10.1007/s13595-013-0340-6 Format de la ressource électronique : URL article Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=33135
in Annals of Forest Science > vol 71 n° 3 (April - May 2014) . - pp 363 - 369[article]Réservation
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Code-barres Cote Support Localisation Section Disponibilité 016-2014031 SL Revue Centre de documentation Revues en salle Disponible Thinning has a positive effect on growth dynamics and growth-climate relationships in Aleppo pine (Pinus halepensis) tree of different crown classes / Jorge Olivar in Annals of Forest Science, vol 71 n° 3 (April - May 2014)
[article]
Titre : Thinning has a positive effect on growth dynamics and growth-climate relationships in Aleppo pine (Pinus halepensis) tree of different crown classes Type de document : Article/Communication Auteurs : Jorge Olivar, Auteur ; Stella Bogino, Auteur ; Cyrille B.K. Rathgeber, Auteur ; Vivien Bonnesoeur, Auteur ; Felipe Bravo, Auteur Année de publication : 2014 Article en page(s) : pp 395 - 404 Note générale : Bibliographie Langues : Anglais (eng) Descripteur : [Vedettes matières IGN] Végétation
[Termes IGN] bilan hydrique
[Termes IGN] climat méditerranéen
[Termes IGN] croissance des arbres
[Termes IGN] Espagne
[Termes IGN] forêt méditerranéenne
[Termes IGN] houppier
[Termes IGN] Pinus halepensis
[Termes IGN] sylviculture
[Termes IGN] troncRésumé : (Auteur) - Context Modification of stand density by thinning may buffer the response of tree growth and vigor to changes in climate by enhancing soil water availability. $- Aims We tested the impact of thinning intensity on cambial growth of Aleppo pine (Pinus halepensis L.) under semi-arid, Mediterranean conditions. $- Methods A multiple thinning experiment was established on an Aleppo pine plantation in Spain. We analysed the stem growth dynamics of two different crown classes under four different thinning intensities (15 %, 30 %, and 45 % removal of the basal area) for 2 years, based on biweekly band dendrometer recordings. Local relative extractable soil water was derived from the use of a water balance model Biljou© (available at https://appgeodb.nancy.inra.fr/biljou/) and used as an explanatory variable. $- Results Radial growth was mainly controlled by soil water availability during the growing season, and differed by crown class. The growth rates of dominant trees were significantly higher than the growth rates of suppressed trees. Removal of 30 % and 45 % of the initial basal area produced a growth release in both dominant and suppressed trees that did not occur under less intense thinning treatments. $- Conclusions Soil water availability was the main driver of radial growth during the growing season. Forest management confirmed its value for ameliorating the effects of water lim-itations on individual tree growth. These results may help managers understand how altering stand density will differen-tially affect diameter growth responses of Aleppo pine to short-term climatic fluctuations, promoting forests that are resilient to future climatic conditions. Numéro de notice : A2014-233 Affiliation des auteurs : non IGN Thématique : FORET Nature : Article DOI : 10.1007/s13595-013-0348-y Date de publication en ligne : 01/05/2014 En ligne : https://doi.org/10.1007/s13595-013-0348-y Format de la ressource électronique : URL article Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=33136
in Annals of Forest Science > vol 71 n° 3 (April - May 2014) . - pp 395 - 404[article]Réservation
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Code-barres Cote Support Localisation Section Disponibilité 016-2014031 SL Revue Centre de documentation Revues en salle Disponible